Diabetes complications

Effectiveness of Empagliflozin vs Dapagliflozin for Kidney Outcomes in Type 2 Diabetes

JAMA Intern MedPublished Target trial emulation cohort study

Authors' conclusion

The results of this cohort study suggest that people with type 2 diabetes who initiated treatment with empagliflozin and dapagliflozin had comparable long-term kidney outcomes.

Study context

Population
Adults with T2D receiving antihyperglycemic treatment, Denmark, June 1, 2014–October 31, 2020; median age 63 years, 37.5% female, median eGFR 88 mL/min/1.73 m²
Participants
32,819 vs 17,464
Exposure
Initiation of empagliflozin vs dapagliflozin
  • Empagliflozinn = 32,819
  • Dapagliflozinn = 17,464reference
Outcome
Kidney outcomes: acute kidney injury, incident CKD (stages G3 to G5 or stage A2 or A3), progression of CKD (≥40% decrease in eGFR from baseline)
Follow-up
6 years
Methodological detailsnationwide, population-based, routinely collected Danish health care data, adjusted for 56 potential confounders, death as competing event, Followed up until outcome, emigration, death, 6 years, or December 31, 2021
  • Nationwide
  • Population-based
  • Routinely collected Danish health care data
  • Adjusted for 56 potential confounders
  • Death as competing event
  • Followed up until outcome, emigration, death, 6 years, or December 31, 2021

Main finding

As reported in the abstract

Kidney outcomes (6-year risks)
Each group vs dapagliflozinEstimate (95% CI)
Empagliflozin
risk ratio (acute kidney injury: 18.2% vs 18.5%) 0.98(0.91–1.06)
Empagliflozin
risk ratio (CKD stages G3 to G5: 11.8% vs 12.1%) 0.97(0.89–1.05)
Empagliflozin
risk ratio (CKD stage A2 or A3: 14.8% vs 14.3%) 1.04(0.93–1.15)
Empagliflozin
risk ratio (CKD progression: 5.3% vs 5.7%) 0.94(0.56–1.58)

Observational data: associations, not effects.

Original publication

Effectiveness of Empagliflozin vs Dapagliflozin for Kidney Outcomes in Type 2 Diabetes. JAMA Intern Med. Published 1 March 2025. doi:10.1001/jamainternmed.2024.7381

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